Maybe the leaves are the most prominent part of this plant of the Gentian family.
They are glaucous and look like a kind of saucer pierced in the center to let through the stem.
But look at the flowers of Yellow-wort (Blackstonia perfoliata). Could be worse!
Ten yellow petals spiralling around each other get upwards fromù a nest of ten pointed sepals.
Early in the morning they are not yet open.
Yellow-wort grows in meadows and open spaces in woods on limestone. Generally some scattered plants, not big groups like here.
It flowers mainly in early summer. Now, in July, it makes fruits.
Still some weeks, and maybe a little heatwave, and you'll find only dried out stalks Between the dry grasses.